2026 BMW i7 eDrive50 Sedan (21 inch Wheels): home charging cost in Rhode Island

At Rhode Island's residential electricity rate of 29.45¢/kWh, a 2026 BMW i7 eDrive50 Sedan (21 inch Wheels) (rated 38.9 kWh per 100 miles by the EPA) costs $11.47 to drive 100 miles on home charging, against $16.02 for the same distance in a car averaging 25.5 mpg on gasoline at $4.085/gallon. Charging at home is cheaper than gas here: 28.4% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2026 BMW i7 eDrive50 Sedan (21 inch Wheels) charged at home in Rhode Island costs about $1,721/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $682 a year.

What one full charge costs

A 2026 BMW i7 eDrive50 Sedan (21 inch Wheels) needs roughly 119.6 kWh to reach its EPA-rated 307-mile range, which runs about $35.21 at 29.45¢/kWh in Rhode Island.

How this compares nationally

This combination ranks 18,643 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 eDrive50 Sedan (21 inch Wheels) alone ranks 236 of 400 models for efficiency; Rhode Island alone ranks 47 of 51 states for electricity price.

Before you install a home charger in Rhode Island

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Ask a licensed Rhode Island electrician to quote the install before this math becomes a real decision.

Where these figures come from

See the methodology guide for exactly which EIA and EPA figures feed 2026 BMW i7 eDrive50 Sedan (21 inch Wheels)'s cost in Rhode Island. Rhode Island has some of the highest residential electricity rates in the country — see the guide to why the cost varies so much by state for the full picture.